Petraeus: more than troops needed in Afghanistan

U.S. Gen. David Petraeus said Sunday that experience in Iraq shows it will take political and economic progress as well as military action to tackle increased violence in Afghanistan.

"You don't kill or capture your way out of an industrial strength insurgency," he told The Associated Press in a telephone interview. His comments come as a debate over the need to redeploy troops from Iraq to Afghanistan has become a central issue in the U.S. presidential campaign.